Supporting-bracket for pea-hullers



F.HAMACHEK SUPPORTING BRACKET FOR PEA \HULLERS.

APPLICATION FILED 8.17.1919.

Patented Oct. 26, 1920.

2 SHEETS-SHEET 1.

WITNESSES.

gem/my d F. HAMACHEK.

SUPPORTING BRACKET FOR PEA HULLERS.

APPLICATION FILED FEB. 11, 1919.

1 357 041 Patented Oct 26, 1920.

2 SHEETS-SHEET 2.

mvas ES. /NVEN TOR.

ATTOQNEY "PATENT OFFICE.

FRANK HAJVIACHEK, OF 'KEWAUNEE, WISCONSIN.

SUPPORTING-BRACKET FOR PEA-HULLERS.

Specification of Letters Patent.

Patented Oct. 26, 1920.

Original application filed August 13, 1914, Serial No. 856,523. Divided and this application filed February 17, 1919. Serial No. 277,595.

I ence being had to the accompanying drawings, which are a part of this specification. This invention relates to supporting brackets for the screen drums of green pea vine hullers.

This case constitutes a division or continuation of my oo-pending application for pea hullers, Serial No. 856,523 filed August 13,

This .invention has for its object to provide a supporting bracket capable of sustaining the weight of the sifting drum and its heavy load.

Another object of the invention is to provide for relative adjustment of the brackets on the opposite sides of the sifting drum in order that the drum may be adjusted in its position to lie concentric withthe inner heatin drum. 2

with the above and otherobjects in view the invention consists in the supporting bracket for pea hullers as hereinwclaimed and all equivalents. i

e Referring to the accompanying drawings in which like characters of reference indicate the same parts in the different views;

Figure '1 is an end elevation with parts sectionedof a pea huller provided with the supporting brackets of this invention, the view being taken at the feed end of the screen drum;

Fig.- 2 is a view of one of the supporting brackets as seen from a'po'sitionbetweenthe uprights; Y a Fig. 3 is a similar View at right angles to F g t We 7 Fig. a is a plan view thereof; and,

Fig. 5 is 'a detail view showingtheanguv i on which the ring-like heads of the screen lar adjustment of the bracket plate.

In these drawings 20 indicates the corner uprights of a frame which has rotatably mounted in it a screen drum 21 driven from a countershaft 22 by means of chains 23 I passing around sprocket wheels'on the shaft and around sprocket teeth the screen drum. I t t Within the screen drum 21 is contained an inner drain 2. p efeiblr e era a e on both ends of section and driven in any desiredmanner in the same direction as the screen'druni'but at greater speed. 1

Hulling boaters 26 are mounted on the inner drum 24 along the corners thereof and are inclined or bent forwardly the direction of rotation of the inner drum.

The screen drum 21 is of large diameter the screen drum, before proceeding toa description of its supporting means constituting the present invention, the walls thereof are formed usually of perforated sheet rubher or open mesh fabric stretched across rectangular frames fitting between the ringlike heads forming the drum ends. 111mm for its circular ends, the drum istherefore polygonal in crosssection and at each corner it is provided with a longitudinally extending and inwardly projecting lifting rib 27 clearing the outer ends of the heaters 26. The'pea vines in tangled masses as harvested from the field are thrown into the screen drum through one open end thereof and are raised by the lifting ribs and dropped upon the more rapidly traveling heaters to have their pods opened by impact. The peas which are thus liberated escape through the openings in the wall of the drum and the vines'co'ntinue their travel tothe otherend of the drum through which t y .disp charged.

\ Toeach square corner upright 20 is secured a bracket carrying a flanged roller3 drum 21 rest and are guided by their-en'- gagement with the flanges;

As the actionof the lifting ribs causes most of the weight of the contents of the drum to be located at one side thereof, and

thus shift the center of gravity toward that the drum to wedge between the rollers, and in order to overcome this tendency, I provide at each end a large flanged bearing roller 36 beneath the supporting roller on one side of the drum for relieving the supporting rollers of the weight of the drum to a large extent. The supporting roller 35 and the bearing roller 36 at one side of he drum are mounted on a long bracket 37, while the supporting roller 35 on the other side of the drum is mounted alone on a short bracket 38. Except for their difference in length the brackets 37 and 38 are substantially alike, and a de scription of the latter detailed in Figs. 2, 3 and a will serve for both.

Each bracket 38 comprises a flat plate 39 fitting against an inner face of one of the uprights 20 and having a flange 0 at its edge at right angles thereto to fit against an outer face of the upright 20. The plate 39 is directly bolted to the upright by means of upper and lower bolts 41. and a bolt l2 at right angles to the bolts ll connects the flange 40 with the upright. All of the bolts pass directly through the upright and rigidly secure the brackets thereto.

A bearing 43 on the plate 39 supports the flanged roller preferably in the man ner covered in my allowed application for bearings, Serial No. 238,585, filed June 6,'

The opening in the flange 40 through which the clamping bolts 42 passes is in the form of a horizontal slot in order that the bracket may be adjusted to more or less of an angular position with respect to the uprights and thereby change the distance between the supporting rollers 35 to raise or lower the end of the screen drum. When the bracket is thus swung away from the upright at its lower end, itmay be held in its adjusted position by tightening the clamping bolt 42, but the preferred method is to place shims or thin sheets of metal behind the plate 39 so as to occupy the space between it and the upright to assist v the clamping screw l2 in maintaining the bracket in its adjusted position. When the bracket is properly adjusted it is clamped firmly in place by tightening the bolts ll.

The position of the screen drum may be originally determined by the adjustments of the brackets on the four corner uprights of the frame and from time to time adjustment may be made in a like manner to compensate for wear or the warping or shrinking of uprights.

The heavy burden supported on one side of the plate 39 by the projecting roller 35 tends to cause said plate to swing to turn edgewise around its bolts tl so as to shear them. This tent ency, however, is overcome by the presence of the deep flange 40 on the outer edge of the plate or the edge distant from the roller, which by its engagement with the outer face of the upright effectively blocks such a tendency and brings the strength of practically the entire cross section of the upright into play to resist such shearing of the securing bolts. This serves to keep the bracket in place and to maintain the adjustments of the sifting drum by preventing a loosening of the brackets. A

It will be noted that the greatest effect of the flange 40 in preventing a shearing displacement of the plate 39 is produced by its upper portion which because of the weight being on the opposite side of the plate would tend to be pressed inwardly against the upright. The lower end of the flange etO tending to move away from the upright under the shearing stress is made to contribute to the resisting action by reason of the clamping bolt 42 clamping it to the upright and preventing its movement away therefrom.

The swinging of the plate 39 to an inclined position for adjusting the screen drum in the manner above described does not materially afl'ect the restraining influence of the flange 40 in counteracting the shearing tendency of the plate, for at its upper end where it is most effective for such purpose, the flange remains practically fully engaged with the side face of the upright in any angular position of the plate. In swinging to its angular positions the plate moves on the fulcrum formed by its upper edge bearing against the upright.

What I claim as new and desire to secure by Letters Patent is:

1. In a pea separator, a frame having an upright, a bracket plate secured to one face of the upright, a drum supporting roller mounted on the bracket plate at one side of the upright, a flange on the bracket plate engaged behind the opposite side of the upright, and a screen drum supported by the roller. 7

2. In a pea separator, a framehaving an upright. a bracket plate secured to one face of the upright, a drum supporting roller mounted on the bracket plate atone side of the upright, a flange. on the bracket plate engaged behind the opposite side of the upright, a bolt securing the flange to the upright, and a screen drum supported by the roller.

3. In a pea separator, a frame having uprights, bracket plates mounted on opposed faces of a pair of the uprights, flanged rol1- ers mounted on the bracket plates on the same sides of the uprights, flanges on the bracket plates engaging the opposite sides of the uprights, and a screen drum support ed by the rollers.

4. Ina pea separator, a frame having uprights, bracket plates mounted on faces of Ill opposite uprights and each capable of angular adjustment to space one end thereof from the upright more or less, rollers mounted on the bracket plates to be moved near together or farther apart by such adjustments-of the bracket plates, and a screen drum supported between the rollers and adjusted in position by their adjustment.

5. In a pea separator, a frame having uprights, bracket plates mounted on faces of opposite uprights and each capable of angular adjustment to space one end thereof from the upright more or less, rollers 1nounted on the bracket plates at one side of the uprights to be moved nearer together or farther apart by such adjustments, flanges on the bracket plates engaging the opposite side of the uprights, and a screen drum supported between the rollers.

6. In apea separator, a frame having uprights, bracket plates bolted to the inner faces of opposite uprights and each capable of angular adjustment to space its lower end from the upright more or less, rollers mounted on the bracket plates to be moved nearer together or farther apart by such adjustments of the bracket plates, flanges on the bracket plates bearing against the opposite sides of the uprights, bolts securin the flanges to the upr'ightsand having sufflcient play to permit of the angular adjustments of the bracket plates, and a screen drum supported by the rollers.

7 In a green pea vine huller, a frame having an upright rectangular in cross section, a supportnig bracket comprising a plate and a flange at right angles to the plate, said plate vfitting against one face of the upright and the flange against one side of the upright, boltsconnecting the bracket and the upright,-a bolt connecting the flange and the upright, a roller mounted on the bracket, and a screen drum mounted on the roller.

In testimony whereof, I aflix my signature, in presence of two witnesses.

FRANK HAMACHEK.

' Witnesses:

SYLVIA R. CLAssoN, OLGA E. LOUGHRAN. 

